Siddharth: The Prisoner (Hindi: सिद्धार्थ: द प्रिज़्नर) is a 2008 Indian thriller film written and directed by Pryas Gupta starring Rajat Kapoor, Sachin Nayak, Pradip Sagar in lead roles.

Roy loses the only copy of his new manuscript, while Mohan (Sachin Nayak), the cyber café manager, comes under pressure from mob bosses to recover the lost money.

In the midst of growing despair about the lost manuscript, Roy is reconciled with his three-year-old son through a scheming housemaid.

Based on the ancient text of the Rig Veda, the film explores the theme of renunciation (of desire) as the true path to enlightenment and freedom.

"[1] Anupama Chopra of NDTV gave a negative review saying, "Gupta doesn’t explain key points in the film: like why Siddharth, an author who almost won the Booker prize, ends up in jail; why his wife wants to divorce him and why he seems so bereft of money, family or even one friend.